Question

calcule o cumprimento de uma circunferência de Raio 40 cm (use π = 3,14 )

Answer 1

$\Large\displaystyle\begin{gathered} \sf{C=2\cdot\pi\cdot r } \end{gathered}$

$\Large\displaystyle\text{ \begin{gathered} \sf{ C=2\cdot3{,}14\cdot40} \end{gathered} }$

$\Large\displaystyle\text{ \begin{gathered} \sf{C=6{,}28\cdot40 } \end{gathered} }$

$\Large\displaystyle\text{ \begin{gathered} \boxed{\boxed{\sf{C=251{,}2\,cm}} } \end{gathered} }$